S
M
T
W
T
F
S
26
89°
75°
27
87°
76°
28
91°
74°
29
91°
76°
30
90°
77°
31
88°
76°
1
89°
77°
2
90°
77°
3
92°
76°
4
89°
76°
5
87°
75°
6
88°
77°
7
89°
76°
8
90°
76°
9
87°
75°
10
87°
76°
11
88°
76°
12
87°
75°
13
86°
74°
14
86°
76°
15
87°
75°
16
87°
76°
17
88°
76°
18
87°
75°
19
87°
76°
20
88°
76°
21
89°
75°
22
89°
76°
23
90°
76°
24
88°
74°
25
88°
76°
26
87°
75°
27
87°
76°
28
90°
72°
29
91°
74°
30
89°
71°
31
90°
72°
1
91°
73°
2
90°
72°
3
89°
73°
4
87°
71°
5
86°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Slidell
Slidell's August 2026 forecast shows daily high temperatures ranging from 86° to 92°, with overnight lows between 70° and 77°. The average high for August is 88° with an average low of 75°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Slidell. See also: September | October | November.
